The democratic transitions in the European South during the decade of 1970 has originated innumerable inquiries on its origins, causes, development and possible efects on the structures and pratical effective politics to the end of the process. At the same time, the transformation of Portuguese, Greek and Spanish regimes has disclosed an important international dimension tha stimulated diverse analyses on this aspect frequently ignored by the studies concerning the procecss of democratic transition. This works seeks to contrapose the thesis of Laurence Whitehead and Philippe Schmitter in view of the Spanish case, having in view to demonstrate that the analitical proposal of Schmitter is the most appropriate to understand the international influences in the democratizations process happened in Spain in the 1970 decade.